Walmart API - 有效负载mime类型问题 - 批量创建/更新项目无效

我能够成功地对其他Walmart API端点进行API调用(特别是GET请求端点),但是批量项端点(POST请求)会导致错误,即使我似乎一切都正确.

以下是对该端点的引用 https://developer.walmartapis.com/#bulk-createupdate-items

HTTP响应META信息

500内部服务器错误

XML

HTTP响应

    
        SYSTEM_ERROR.GMP_GATEWAY_API
        Couldn't determine the boundary from the message!
        System encountered some internal error.
        ERROR
        DATA
        
        
    

HTTP请求:

url https://marketplace.walmartapis.com/v2/feeds?feedType=item

方法 POST

请求标头

WM_SVC.NAME: Walmart Marketplace
WM_CONSUMER.ID: {my consumer id key}
WM_QOS.CORRELATION_ID: {my arbitrary text key}
Content-Type: multipart/form-data
Accept: application/xml
WM_SEC.AUTH_SIGNATURE:{my jar-file-generated key}
WM_SEC.TIMESTAMP:{my jar-file-generated timestamp}

POST有效负载(只是文本,参数没有键)

  
    2.1
    qqq
    qqq1
  
  
    qqq
    
      QQQ 1-Foot S-Video Male to 2 S-Video Female Y Cable (CSV2F)
       QVS Premium S-Video Mini4 Male to Two Female Splitter Cable CSV2F A/V Device Cables